9898611 has 4 divisors (see below), whose sum is σ = 13198152. Its totient is φ = 6599072.

The previous prime is 9898597. The next prime is 9898613. The reversal of 9898611 is 1168989.

9898611 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1168989 = 3 ⋅389663.

It is a cyclic number.

It is not a de Polignac number, because 9898611 - 2⁶ = 9898547 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9898613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649766 + ... + 1649771.

It is an arithmetic number, because the mean of its divisors is an integer number (3299538).

Almost surely, 2^9898611 is an apocalyptic number.

9898611 is a deficient number, since it is larger than the sum of its proper divisors (3299541).

9898611 is a wasteful number, since it uses less digits than its factorization.

9898611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299540.

The product of its digits is 31104, while the sum is 42.

The square root of 9898611 is about 3146.2058101783. The cubic root of 9898611 is about 214.7128743402.

The spelling of 9898611 in words is "nine million, eight hundred ninety-eight thousand, six hundred eleven".